Fragmentation pathways of the title compounds were studied using accurate mass measurements and collision-induced dissociation spectra. Substituents in the ortho position of the aryl group at the pyrimidine ring were found to play a special role in the electron impact (EI) induced fragmentation of t
Electron impact mass spectra of substituted 1-aryl-2-arylsulphonylamino-δ2-imidzazolines
✍ Scribed by Vladimir Ovcharenko; Marzena Rzadkowska; Tadeusz Tkaczynski; Dariusz Matosiuk; Kalevi Pihlaja
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 121 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0951-4198
No coin nor oath required. For personal study only.
✦ Synopsis
Table 1. The EI mass spectra, showing peaks of >5% relative abundance (RA), of compounds 1-10, using 70 eV electrons Compound m/z (% RA) 1 315(M, 55) 314(10) 161(10) 160(89) 159(13) 107(12) 106(100) 105(11) 104(9) 91(33) 77(22) 65(15) a 2 345(M, 4) 316(7) 315(19) 314(100) 190(11) 175(7) 172(5) 160(11) 159(68) 136(24) 121(10) 120 (13) 92(6) 91(21) 77(6) 65(11) 3 345(M, 53) 190(20) 137(10) 136(100) 121(5) 120(8) 92(5) 91(16) 65(7) 4 351(M, 16) 350(9) 349(M, 43) 196(11) 195(6) 194(31) 193( 7) 159( 7) 142( 32) 141( 10) 140( 100) 139( 7) 138( 7) 111( 8) 105( 6) 91( 28) 65( 12) 55(6) 5 343(M, 27) 189( 14) 188( 100) 173( 21) 146( 7) 134( 9) 132( 9) 131( 8) 91( 15) 77( 5) 65(6) 6 365(M, 6) 337( 6) 336( 34) 335( 16) 334( 93) 190( 14) 175( 13) 172( 8) 160( 16) 159( 100) 136( 30) 134( 6) 121( 16) 120( 18) 113( 5) 111( 16) 106( 13) 93( 5) 92( 7) 78( 6) 77( 12) 75( 8) 65( 9) 51(7) 7 367(M, 16) 366( 9) 365(M, 43) 190( 23) 175( 5) 137( 9) 136( 100) 121( 7) 120( 10) 111( 10) 92( 5) 77( 6) 75( 5) 55(5) 8 373(M, 5) 371(M, 22) 370( 10) 369(M, 33) 159(9)
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